Metallic spool



Aug'.Y 1, 1933. w, C. ,LLS 1,920,422

METALLIC sPooL l A Filed June 25, V1930v Patented Aug. 1, 1933 1,920,422 METALLIC SPOOL Wallace o. Mine', Rockford, n1., assigner to 1.1..

Clark Manufacturing Co., Rockford, Ill., a Corporation of Illinois Application June 23, 1930. serial No. 463,065

, 11 claims. (c1. r242-123) The invention pertains to spools or reels of the type embodying a cylindrical body usually constructed of sheet metal and having heads at opposite ends, also preferably constructed of sheet-metal.

The primary object of my invention is to provide a spool of this character in which the heads are secured on the ends of the tubular body in a manner such as to lend strength and rigidity to the connection as well as to present a neat appearance.

A common method of fastening a spool h'ead on the end of a tubular body consists in providing on the end of the body a plurality of lugs or tabs bent into transverse 'relation to the body and engaging with the head to secure it in position on the body. The present invention involves such a method of fastening a head on the body, and a further and more specific object thereof is to provide an improved method of fastening involving the provision on the head of an annulus in the form of a fold adapted to receive the fasteningk lugs in interengaging relation therewith, thereby securing the head rmly in position and at the same timeconcealing the lugs.

The objects of the invention thus generally set forth, together with other and ancillary advantages are attained by the construction and arrangement illustrated in the accompanying drawing forming part hereof, wherein:

Figure 1 is a fragmentary side elevational view of the spool with one end portion shown in longitudinal section to illustrate the construction employed.

x Fig. 2 is a fragmentary transverse sectional view taken approximately in the plane of line 2 2 of Fig. 1, but on a smaller scale.

- Fig. 3 is an elevational view of one end of the body before the head is attached thereto.`

Fig. 4 is a fragmentary longitudinal sectional view illustrating a modied form of the invention.

Fig. 5 is a fragmentary plan view of a spacer ring employed in the construction shown in Fig 4.

The spool comprises a tubular` body 7 having heads 8 secured at opposite ends thereof. 'Ihe lbody 'l is formed from a fiat sheet of metal bent into cylindrical form and cut at opposite ends to form tabs or lugs 9 spaced a short distance apart in a circular series. As shown in Fig. 1, each head preferably includes a pair of circular plates or disks 10 and 11 encircling the body and having their peripheral edge portions interlocked.

in curls as indicated at 12.

Referring rst to the construction shown in Fig. 1, the disk'10 constitutes a backing plate for the disk 11 which thus forms a face plate, and the head further includes an annulus 13 adapted for interengagement with the lugs 9 after pass- 60 ing through the circular series of slots 14 in the backing disk 10.

The annulus 13 is in the form of a fold, one leg of which is formed integral with the face plate 11 and the other` leg of which is ,formed integral with an end closure plate or disk 115 for the body 7. The annulus'thus formed is bent, preferably, radially outwardly together with the lugs 9 engaged therein, into transverse relation to the body, thus serving not only to conceal the lugs but to insure a strong and rigid connection with the body. l

The backing plate 10 may, if desired, be extended inwardly within the body to form an integral reinforcing plate- 16 in underlying rela- 75 tion to the end plate 15, and both of said plates may be centrally apertured to receive the end of a central core 17, which latter is flanged outward- 1y into engagement with the plate 15.

The face plate 11 of the head may be constructed to provide a raised central portion 18 in spaced relation to the backing plate 10 and providing a flat label-receiving surface preferably coplanar with the curl 12 and terminal face of the annulus 13; and the plate 16 Within the body may be formed with an annular depression 19 to form a groove to receive a driving pin (not shown) which may be entered through an aperture 20 formed in the end closureplate 15 in registration with thegroove. y

In the embodiment shown in Fig. 4, the backing plate 10' and face plate 11 are both provided With a circular series of slots to permit the passage therethrough of lugs 9', and the 95 plates are held in' spaced relation by means of a spacer ring 21 having notches 22 to receive the lugs 9'. The outer peripheral edges of the plates are interlocked by coacting curls 12.

In this instance the head also includes a separately formed end closure plate 23 with which the annulus 13' is formed integral. The outer free leg of the annulus is clamped between the face plate 11 and the lugs 9' when the annulus, together with the lugs, are bent into transverse relation to the body. The end plate -23 is centrally apertured to receive the end of a central core 17', the latter having an outturned ange engaging with the peripheral edge portionof the end plate.

. The end of the body may be additionally rein- I lar body having a plurality of lugs projecting from one end thereof, and a head comprising a face plate and an overlying backing plate encircling the end of they body and secured together at their outer-peripheries, said backing plate mveent axially thereof toward the opposite end of the body, and said face plate having an annulus formed integral therewith, said annulus being in the form of a fold adapted to receive saidlugs and bent into interengaging relation there- 2. A spool comprising a tubular body having a plurality of lugsprojecting from one end thereof, and ahead comprising a backing plate encircling the body and engaging therewith so as to be held 'I y, against axial movement toward the opposite end ofthe body, a face plate overlying said backing plate and secured to the lperipheral edge of the lbacln'mg plate, and an annulus formed integral with one of said platee, said annulus being in the form of a, fold adapted to receive said lugs on the body and bent into transverse relation to the body.

d. A spool comprising, in combination, a tubular body having a plurality of lugs projecting from-one end thereof, a head plate encircling the body and having a plurality of slots through which said lugs project, a second head plate also encircling the body and having its peripheral edge secured to the peripheral' edge of the face plate, and a sheet metal. annulus formed integral with one oi said plates, said annulus being channel shaped to receive said lugs and bent radially outwardly into transverse relation to the body and in inter-engaging relation to saidl lugs.'

d. .il spool comprising a tubular body having a plurality or lugs projecting from one end thereof, and a head tor the body comprising a disken- I circling the body near the end thereof and entherewith so as to be held against axial movement toward the opposite end of the body, a vtace plate also encirc the body and overlying said disl anv end closureplate for the body, and. an annulus ,formed integral with `one of said plates, said annulus `being in theorm of a fold adapted to receive said lugs and bent Vtogether girth said lugs into transverse relation to the ody.

5. il. spool comprising a tubular body having a plurality of lugs projecting lfromr one end thereof, and a head for the body comprising a disk encircling the body near the end thereof and en- :l therewith so as to be held against axial movement toward the opposite end of the body,` a

face plate also encircling the body and overlying said dish, an end closure plate for the body, and an ahnulus in the form of a fold having its opposed legs respectively formed integral with said 6. A spoo'l'com'prising a tubular body-having a plurality of lugs projecting from one end thereof, and a head comprising a backing plate and a face plate encircling the body and.V extending radially thereof, an annulus in the form of a fold having one leg formed integral with one of said plates and adapted to receive said lugs in interengaging` relation therewith, and said face plate having a portion spaced from the backing plate to provide a flat annular surface disposed substantially inthe plane ol.' the outer face o! the annulus.

'7. A spool comprising a tubular body having a plurality of lugs projecting from one end thereof, and a head comprising a face plate and a backing plate both encircling the end of the body and projecting radially therefrom, and an annulus formed integral with one of said plates, said annulus being in the form of a fold adapted to receive said lugs and bent together with said lugs into transverse relation to the end of the body.

8. A spool comprising a tubular body having a pluralityof lugs projecting from one end thereof, and a head for the body comprising a l face plate and a backing plate both encircling the body and projecting radially therefrom, an end closure plate for .the body, a tubular core disposed centrally of the body, said end closure plate being centrally apertured to receive the end of said core, a reinforcing plate formed in- A tegral with the backingplate and also centrally apertured to receive said core, and an annulus formed integral with said end closure plate, said annulus being in the form of a fold adapted to receive said lugs and being bent together with l said lugs into transverse relation to the body.

9. A spool comprising a tubular body having a plurality of lugs projecting from one end thereof, and a head for the body comprising a face plate and a backing plate both encircling A the body and projecting radially therefrom, an 115 Aend closure plate ior the body, a tubular core disposed centrally of the body, said end closure plate being centrally apertured to receive the end or said core, a reinforcing plate formed integral with the backing plate and also centrally apertured to receive said core, and an'annulus in the form of a fold having opposed legs respectively formed integral with said lace plate and said end closure plate, said lugs being entered between said legs ol the annulus and clamped therebetween.

10., A spool comprising a tubular body having a plurality of lugs projecting from one end thereof, and a head comprising a lace plate and a backing plate encircling the body and having portions projecting radially from the body in spaced relation, said head further comprising a sheet metal annulus in the form of a fold adapted to receive said lugs and bent into interengaging relation with said lugs so as to conceal the same and hold the head against movement axially of the body.

11. A. spool comprising a tubular body formed oi' sheet metal and having one end cut to provide a plurality of spaced lugs, a head plate having a plurality of slotstherein through which said lugs project, and a clamping device in the form of a'fold into which said lugs are entered, said lugs being bent transversely of -the body Lwith one of the legs of said fold directly engaging 14154 the upper sides of said bent lugsand the other leg of the fold interposed between the lugs andthe head plate and engaging the under sides ,of the lugs.

WALLACE C. 15o 

